Kart Axle Parts – Bearings, Keys & Sprocket Hubs
Kart Axle Bearing – 30mm, 40mm or 50mm ID, Heat-Treated Steel, Low Drag
About this part
High-performance go-kart axle bearings in 30 mm, 40 mm and 50 mm, sold individually. Precision engineered to minimize friction for smoother acceleration, and built from heat-treated steel to hold up under high cornering loads. The essential upgrade for a smooth, efficient drivetrain.
Fitment
- 30 mm axle
- 40 mm axle
- 50 mm axle (OTK, CRG, Birel, Praga and most senior karts)
- Fits the standard axle bearing cassettes on almost any kart
Quantity
- Price is per bearing. Most karts run two or three axle bearings; order a full set to replace them together.
Features
- Minimize drag: reduced friction for smoother acceleration
- Durable build: heat-treated steel construction for longevity
- Reliable: keeps the rear end rolling free lap after lap
When to replace
Spin the rear axle by hand with the chain off. If it does not roll freely and quietly, or you feel any notchiness, the bearings are costing you speed. Most racers replace them at the start of the season and after any bent-axle incident.
Pairs with our 50 mm axle keys and quick-change sprocket hub. Stocked in California.
Orders placed before 10am Pacific usually go out the same business day.
Unused parts in original packaging. See the return policy.